Tabulating-machine



1. w. BRYCE.

TABULATING MACHINE. APPLICATION FILED MAY15, 1919.

1,335,274. Patented Mar. 30, 1920.-

INVENTOR 7:17a

BY wwwzi State of New York, have comprise two counters,

UNITED PATENT OFFICE.

JAMES W. BRYCE, 0F BINGHAMTON NEW YORK, ASSIG-NOR TO INTERNATIONAL TIME RECORDING COMPANY OF NEW YORK, A CORPORATION OF NEW YORK.

TAIBULATING-MACHINE.

Specification of Letters Patent. Patented Mar. 30, 1920.

Application filed May 15, 1919. Serial No. 297,383.

To all whom it may concern:

Be it known that I, JAMES W. BRYCE, a citizen of the United States, residing at Binghamton, in the county of Broome and invented certain new and useful Improvements'in Tabulating-Machines, of which the following is a full, clear, and exact description. 7

My present invention is an improvemen in tabulating or sorting machines or devices of similar character and has as its primary objects to provide for machines by either an alternating or a direct current. This isan important consideration as these machines require fortheir operation a motor, and it may happen that the only available source of current for running it is alternating, so that 'either a specially constructed direct current motor or a regular alternating motor which will not work in a. direct current system is required.

A further object is to dispense with all controlling relays in such circuits as are known as the counter circuits in a tabulating machine, as well as the resistance units in series therewith, fuses and more or less complicated wiring, or if the machine be of the relayless type, to dispense with the contacts in series with the counter magnets.

Incarrying out the invention, I use any suitable form of chine, and for purpose of illustration I have selected for the drawin which is hereto annexed a diagram large y copied from one used in an application of Clair D. Lake, filed Aug. 16, 1918, Serial No. 250,104 which shows the arrangement of circuits and mechanism used in a nowlwell known form of tabulating machine of the relayless type, adding to it a diagrammatic showing of the parts and in order that the general nature machine may'be understood I now this drawing. I

The machine illustrated is assumed to one containing a plurality of counter magnet circuits l, and the other a similar number of counter magnet circuits 2, each containing a magnet 3, and a brush 4. In the present case these circuits are grounded at 5. The brushes 4 of such refer to bear upon a contact plate or block 6, or they engage with a pivoted lever the operation of such tabulating or sorting ma-' which comprise my improvements,-

I the brushes and said plate 6 or the contacts,

with the result that whenever a brush comes over a perforation in a card'it touches the contact and directs a current through the counter magnet connected with that brush.

When a card is passed by the action of the machine into the card chute, it is supposed to 7 and by turning that lever it closes two contacts 8 and keeps them-closed as long as the card remains in the chute. At the same time or an instant thereafter a cam 9 operated by the machine closes two contacts 10, and this operates to connect one side of a source of current 11. here shown conventionally as a battery, but which may be any source of either direct or alternating current, through wire 12 to a wire 13, from which a path for the current extends through the closed contacts 10, and the closed contacts 8 to a wire 14, to the motor control relay 15, and the counter control relay 16, and thence to the other side 17 of the source of supply circuit.

The energization of relay 15 attracts its armature 18 and closes a branch circuit 19 from a pair of normally closed contacts 20, operated by a cam 21, whereby'the current from wire 12.is directed through a relay 22 which draws up its armature and closes another branch 23, from the contacts 20 through the relay 22, so that the motor circuit remains closed until it is operation ofthe cam 21.

The energization of the relay 16 raises two armatures 24 and 251, the latter of which closes a circuit through the contacts 8 and thus keeps the counter and the motor control relays active until this circuit is interrupted by the cam 26, acting on two contacts 27 There are other parts illustrated but the system ,is 'well known: in the art and such parts, as well as some of those above described, are not essential to and need not all be used in carrying-out my improvement.

Arranged at any convenient point in the machine is any suitable form of low tension type magneto machine 28, having preferably an H form of armature. This magneto is driven by the machineand is so connected therewith that it develops its highest voltage at the moments when the perforations in a card, if (any there be, reach the line of the brushes 4, so that it sends a single impulse through any perforation that may come under a brush. One pole of the magneto 1s V 29, closed by the relay 16, and armature 24,

the brush that contacts with the plate 6, through the corresponding counter magnet to the ground 5.

Underwriters regulations may require acircuit breaker between the magneto and the vplate 6. If so, the magneto shaft may carry I nets and means including brushes for cona cam 30, that raises and lowers an arm.31, in the circuit 29, and this cam may be so timed as to allow only the top of a current wave or impulse to pass to the counter magnets. In any event there will be no appreciable sparking, as the breaks, should they occur, will be at a low point in the wave.

If the operating current be continuous, a,

compound or shunt wound motor 32 may be used. If alternating, any self-starting or induction motor may be substituted. The change from continuous to alternating current will also involve well understood changes in the relays which will have to be properly wound, and preferably so as to operate on either direct oralternating curre'nt,'and other well understood conditions of the kind described and operated under will have to be observed.

It is manifest that by the above described improvements theconstruction and operation of a machine of this character are very greatly improvedand simplified. Experience has demonstrated that a small magneto the conditions which ordinarily obtain in these machines is amply suflicient to operate one or several counter magnets simultaneously or in rapid succession.

'rated cards are to be passed, of a ma machine in a circuit completed through the brushes and contacts an signature.

nets and means including brushes for connecting them in circuit by and through erforated cards, of a magneto machine driven at a given rate with relation'to the movement of the cards so as to developa current impulse at the moment when perforations in a card pass the line of said brushes.

2. In a machineof the kind described, the combination with counter or similar magnecting them in circuit by and through per- 'forated cards, of a magneto machine connected with and driven by the machine at a rate which causes it to develop an impulse of current at times when the perforations in a card pass the line of brushes;

3. In a machine of the kind described, the combination 'with' a line of brushes and con tacts therefor and between which perfoeto driven at a rate which causes it to develop an impulse of,

current in said circuit at the moments when perforations in the cards pass the line of brushes.

4. The combination with a tabulating-machine having a pluralityof counter magnets, any suitable source of current for controllingand operating said machine, and a magneto driven by the machine at a given rate so as to develop current impulses at predetermined instants for the operation. of the counter magnets. i f

In testimonywhereof I hereunto aflix my JAMES w. BRYCE. 

